| Net Change Annuities and Investment Certificates | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Net Change Annuities and Investment Certificates, Total | en-US | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| The cash inflow or outflow for an insurance contract under which the policy holder make a lump sum payment or a series of payments in exchange for periodic payments to the policyholder beginning immediately or at some future date. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |